Reinforced non-uniform solenoid type demagnetizing work coil

The invention relates to a reinforced non-uniform solenoid type demagnetizing work coil which comprises a solenoid type demagnetizing work coil with a plurality of coils, wherein the distance between a first coil and a second coil of the solenoid type demagnetizing work coil is A, the distance between a reciprocal first coil and a reciprocal second coil of the solenoid type demagnetizing work coil is B, a plurality of coils are uniformly arranged between the second coil and the reciprocal second coil, the distance between each two adjacent coils of the plurality of coils is C which is larger than A and B. According to the invention, the work magnetic fields at the head end and the tail end of the coil are slow in attenuation and close to those at a middle homogeneity range, therefore, the homogeneity of the magnetic field generated by a demagnetizing coil is increased to the greatest extent under the condition that the length of a demagnetizing field is not increased, and further purposes of saving a cable and improving the demagnetizing efficiency are achieved.